Tubular lantern



(No: Model.)

BQJ. HALE I TUBULAR LANTERN. N0.'252,s15. Patented Jan. 17.1882.

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l'? UNITED STATE PATENT OFF-Ice.

ELIAS J. HALE, OF FOXCROFI,1\IAINE.

.TUBULAR LANTERN,

SPECIFICATION forming To all whom it may concern:

Be it known. that I, ELIAS J. HALE, of Foxcroft, of the county of Piscataquis and State of Maine, have invented a new and useful Improvement in Tubular Lanterns; and I do hereby declare the same to be described in the following specification and represent-ed in theacscribed in the United States Patent No.230,391

companying drawings, of which-- Figure 1 is a vertical section of a tubular lantern of my improved construction. is a section of the lamp, showing the lower horizontal portions of the air-duct journaled in bearings formed in the lamp, such portions in Fig. 1 being represented as inserted in tubular bearings projecting from the lamp. Fig. 3'

is a section ofthe lamp, showing the lower horizontal portions of the air duct journaled upon tubular bearings projecting from the lamp.

My improvement, the nature of which is defined in the claim hereinafter made,"*relates to the manner of combining the air-duct with the lamp in order to admit of such duct, with the flameguard and its supporter, beingtipped back relatively to the lamp,'so as to uncover the wick for ready access to be hadto it, whether for lighting or trimming it.

In the tubular lantern represented and deextinguished by wind or a current of air blown place over the lower one.

suddenly into either of the openings. Besides this, a person while holding lower section was liable tohave his handcaught and pinched or injured between the sections while .the upper one was in' the act of being moved forward to My improvement not only saves the necessity and cost of hinges to the air-duct, but keepsthe-duct closed while it is being tipped back, thus rendering itimpossible for the flame to be extinguished from the cause above mentioned.

In the drawings, A denotes the lamp or base portion of the lantern,'it being provided with a burner, 11, such as is generally used for burning a hydrocarbon. The glass flame-guard B Fig. 2.

part of Letters Patent No. 252,315, dated JanuarylV, 11882.

Application filed November 25, 188i. (No modelJ I rests at bottom on a f'oraminous dish, (J, encompassing the cone of the said burner, and resting on the annular shell 8 thereof, the hole I), for reception of the cone, being of a diameter sufficient to allow of the dish be ing'tipped backward on its support with the air-duct so as to uncover the burner for access being readily had to the upper part of the wick, whether for inflaming or trimmingit. I The flame guard, usually made of glass. is

, held down upon the disk by an open metallic cap or dome, D, and a spiral spring, E. The

dome slides freely on and encompasses the vertical airtube F, extending'down from and opening out of the air-duct G at its crown. This air-duct F, arranged as shown, serves, with the double branched' air duct G, to conduct air down into the burner.

The spiral spring E presses the dome down upon the flame-guard and keeps it in contact with thedish G. The upper part of the said guard enters ashort'distance the mouth or lower part of the dome.

The air-duct G, double-branched or formed as represented, has its lower horizontal portions, b b, in one piecewith the rest of it and journaled to the lamp-'that is, each of the said portions extends into a circular opening in the walls of the air-chamber c of the lamp, or into or encompasses a tubular extension from such airchamber-all being so that air may'pass freely through'the duct into the chamber, and the duct, with the flameguard and its supportin g-dish, may be tipped back, so as to uncover the wick of the burner, in order for access to be had thereto, the spiral spring allowing the dome and flame-guard to rise on or relatively to the tube F, as may be required to admit of the air-duct Gr being so tipped backward.

In Fig.1 the lower horizontal portions, 1) b,

of the duct G are shown as adapted to turn in tubular bearin gs d d, projecting from and opening out of the walls of the air-chamber ofthe lamp. In Fig. 2 the portions I) b are shown as adapted to turn in bearings or holes 07 chapplied to or formed in the said walls.

From the above it will be seen that the airduct G is substantially in one piece or section, and turns in bearin gs which-prevent no lateral opening for ingress of air when the duct is tipped backward.

Idonothereinclnim theair-duct constructed in or projecting from the air-chamber of the in two separate seetions arranged and hinged lamp and opening into such chamber, all beto together in manner as represented and de! ing substantially as set; fort scribed in the aforesaid patent Y 5 I claim I ELIAS J. HALE.

In the tubular lantern, the air-duct G, l av- Witnesses: ing its lower tubular portions, 1) b, supported R. H. EDDY,

by and adapted to revolve or turn in bearings E. B. PRATT. 

